Hydrocarbon-motor.



R. HUIEF. HYDROCARBON MOTOR. APPLICATION FILED FEB. 21, 1912.

1 1 22, 1 Patented Dec. 22, 1914.

UNITED s A Es P TEur-oFFio RUSSELL HUFF, or nnrnoir, rncnreniv, AssIeNon To I'AeKAanmo'roa CAB COMPANY, or person, MICHIGAN, A CORI'ORATION or MICHIGAN.

To all whom it may concern:

' Be itknown that I RUSSELL zen of the United states, and resident of Detroit, Wayne county, State of Michigan, have invented certain new and useful-Improvements in Hydrocarbon-Motors, of.

.Which the following is a specification.

(This invention relates to hydrocarbon m'otors and particularly to the construction off? p "SIX cylmders east in pal-rs. Each of the-cylthe intake manifold or header therefor.

In a. hydrocarbon motor si'ich as is em ployed for motor vehicles, which comprises six or more cylinders .with the cylinders cast either singly or in pairs, one of the most difficult problems confronting the designer is to produce an intake manifold or header appearance, and be a practical manufacturing proposition. It has been'found that too long a manifold or a manifold with too .many branches, may givea good distribution of gases at certain speeds, but with so condensation of the hydrocarbon in the manifold takes place to an alarming extent, which causes the motor to'choke when suddenly throttled. A short manifold, therefore, has advantages over a long manifold, but in an ordinary straight manifold the intake opening would necessarily be closer to some of the outlets than to others so that one I cylinder or one pair of'cylinders might rob -an adiacent cylinder or pair of cylinders and a bad distribution of gases result. i

.- It is the object. of the present invention to produce-an approximately straight manifold. which may be set close to the cylinders so that the outlet branches from the main tube may be as short as possible, and which tie-provided with a deflector. block between the inletopenijng ofthe manifold and the adjacent'outlet opening so that the inrushing gases will be directed. toward the more remote. outlet openings, thus giving the desired correct distribution of gases. At the same time this deflector block is utilized to strengthen the, manifold at-its weakest point and to provide means for attaching, the manifold to the adjacent motor cylinder.

Withithe above and other objects in view,

the invention. may be described in connection with the accompanying drawings as follows:

' Figure'l is a side elevation of a siz't-cylim HUFF, a eiti- Specification of Letters;1?atent. Pate ted n gg 1914 Application filed February 21, 1912. Serial No. 679,170.

der motor with an intake manifold .constructed according to this invention; ,Fig. 2 is an end view of the motor with" the manifold in vertical section; and Fig. 3 is a lon-- gitudinal vertical section of .the manifold.v

taken on the line of Fig. 2;

The motor crank case or base is indicated at 10 upon which the cylinders 1.1.are

supported, there being inthepresent I instance A inder' castings has an intake valve chamber 12 through which the explosive mixture passes to the explosion space.

. The intake manifold or header is indicated at 13, comprising a tubular body part '14; extending horizontally alongside the cylinders with three horizontal openings 15,

16 and 17, which are adapted to corhuni- ,cate with the three valve chambers" 12 of the cylinders. Theopening 16 is arranged centrally of the manifold in a plane with and adjacent thevertical opening 18, forming the intake opening of the manifold. A v

flange 19 is provided for securing thecarbureter 20,1;0 the manifold as shown particularly in Fig. 1. Flanges 21 are also pro vided' at the extreme ends of the manifold for securing the manifold to the cylinders.

A flange 22- is also provided adjacent the opening 16 for securing the central part-of the manifold to the middle cylinder casting.

To obviate sharp corners the manifold is somewhat'enl'arged near its middle portion so that an-easy curve is formed from the openlng 18 into'the body of the maniis formed in the manifold directly above the opening 18 and between it and the opening 16.

This deflector isfof somewhat triangular" shape in cross section as shown in Fig.3, and

tends to separate the streamof gases entering at the opening 18 and directit toward the ends of the manifold, thus to'some extent"deflec ting.. the gasesfrom the opening 16; .This causes an approximately even dis tribution of the gases to the three cylinder castings without making the intake header 4 any longer than is absolutely necessary to reach from the carbureter to all of the cyliiiders.

The filler block 23 also a a, tr n'g h n no 7 the manifoldat'itsiivealrest point,-which is Q ..,$9 1 neimportancebecauseof the fact that iIf-'r"m'otors off this type for motor" "vehicles casting. We1 'e it not, for the. filler block at'thispoint/itwould be impracticable to of leakage" in" theii manifold, and the manifold is set so clo's'e" to the cylinder castings i' 'eleis e t' construction the bolt hole hole 26 in the'flange 22 bear do lie 1hole's'27 inthe flanges use a through boltbecau'se of'the possibility hW fier' k lefly I 2,-t it "'blel'toajflan'ge .thejma'nifold at that'- rt a 'bolt'. from the inner side."

0 the middle cylinder and rear cylinder cast- 8 0 11 Ing this means. that a single pattern will do for all three cylinder castings, which is of considerable advantage.

Having thus described the invention, what is claimed is:

In a hydrocarbon motor, the combination with the cylinders, of a manifold comprising a substantially straight tube having outlet openings at its ends andadjacent inlet and outlet'openings at its middle, said tube being enlarged at its middle and tapering 35 from its body to said inlet opening, a de-' fiector block of triangular cross section in the manifold at'said enlargement and arrangedbetween said adjacent inlet and outlet openings with its apex toward the inlet opening, whereby the incoming gases are deflected away from the middle outlet opening and toward the openings at the ends of the tube.

In testimony whereof I afiix my signa- 45 ture in the presence of two witnesses' RUSSELL HUFF.

Witnesses:

W. H. FINoKnL. J r'.,

E. A. KIELME. 

